Top "Posix" questions

How to make parent wait for all child processes to finish?

I'm hoping someone could shed some light on how to make the parent wait for ALL child processes to finish …

c process operating-system fork posix

CRON job to run on the last day of the month

I need to create a CRON job that will run on the last day of every month. I will create …

automation cron posix

How to use nanosleep() in C? What are `tim.tv_sec` and `tim.tv_nsec`?

What is the use of tim.tv_sec and tim.tv_nsec in the following? How can I sleep execution …

c posix sleep

What can lead to "IOError: [Errno 9] Bad file descriptor" during os.system()?

I am using a scientific software including a Python script that is calling os.system() which is used to run …

python subprocess posix file-descriptor ioerror

Converting year and month ("yyyy-mm" format) to a date?

I have a dataset that looks like this: Month count 2009-01 12 2009-02 310 2009-03 2379 2009-04 234 2009-05 14 2009-08 1 2009-09 34 2009-10 2386 I want …

r date posix zoo r-faq

How can I catch a ctrl-c event?

How do I catch a Ctrl+C event in C++?

c++ event-handling posix signals sigint

How can I convert a file pointer ( FILE* fp ) to a file descriptor (int fd)?

I have a FILE *, returned by a call to fopen(). I need to get a file descriptor from it, to …

c linux unix file posix

Checking if a file is a directory or just a file

I'm writing a program to check if something is a file or is a directory. Is there a better way …

c posix

When should I use mmap for file access?

POSIX environments provide at least two ways of accessing files. There's the standard system calls open(), read(), write(), and friends, …

c file-io posix mmap

How do I find the current machine's full hostname in C (hostname and domain information)?

In a C project (POSIX), how do I get the fully qualified name for the current system? For example, I …

c sockets posix environment